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Análise bioeconômica do seqüestro florestal de carbono e da dívida ecológica: uma aplicação ao caso do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2007-12-03)
Though heavily criticized, the Kyoto Protocol has stood out as the key political tool in addressing climate change. However the only of its instruments (IET, JI, CDM) that allows industrialized and developing countries to ...
Técnicas de integração de circuitos de auxílio à comutação aplicadas a inversores e a sistemas multi-pólos
(Universidade Federal de Santa Maria, 2007-09-19)
This Ph. D. dissertation presents contributions to the investigation of soft-switching cells with integrated components, presenting three main approaches: (i) Soft-switching cells with filter coupled inductor; (ii) Integrated ...
Alterações no encéfalo de bovinos submetidos à vigilância das encefalopatias espongiformes transmissíveis
(Universidade Federal de Santa Maria, 2007-02-23)
This study stems from the findings during the gross and histopathological exam of 3,338 cattle brains as
part of the bovine spongiform encephalopathy (BSE) active surveillance program of the Brazilian Ministry of
Agriculture, ...
Determinação de arsênio e cromo em insumos farmacêuticos contendo enxofre por espectrometria de absorção atômica com forno de grafite e análise direta de amostras sólidas
(Universidade Federal de Santa Maria, 2007-09-17)
In this work a procedure was developed using direct solid sampling (DSS) and graphite furnace atomic absorption spectrometry (GF AAS). The study was applied to the determination of As in hydrochlorothiazide and barium ...
O modelo desmielinizante do brometo de etídio (be): estudos morfológicos em camundongos C57BL/6 normais e knockout para conexina 32
(Universidade Federal de Santa Maria, 2007-12-14)
Light and ultraestructural changes of central and peripheral nervous system lesions in mice KO for connexin-32
and submitted to the ethidium bromide gliotoxic demyelinating model are described. Their KO condition was tested ...
Potencial do Pupinus albescens Hook. & Arn. para recuperação de solos arenizados do bioma pampa
(Universidade Federal de Santa Maria, 2007-02-28)
As the productive processes move forward on the sandy soils of the Southwest region of Rio Grande do Sul, the
arenização has been assuming relevance as factor of soil and regional ecosystem degradation. Contention measures ...
Tolerância de espécies florestais arbóreas e fungos ectomicorrízicos ao cobre
(Universidade Federal de Santa Maria, 2007-12-13)
The contamination of soil for copper had refusal contribute to plants establishment in mining and vineyards areas of South Brazil. Mycorrhyzal forestry species could be one alternative to viable the development of plants ...
Relações entre indicadores de qualidade do solo e a produtividade das culturas em áreas com agricultura de precisão
(Universidade Federal de Santa Maria, 2007-02-16)
The estimative of yield variability is an important tool to soil management decisions and to investigate yield limiting factors. Tools of precision farming as yield mapping and soil sampling using GPS makes possible identify ...
Controle do crescimento e desenvolvimento da batata semente através da condutividade elétrica da solução nutritiva
(Universidade Federal de Santa Maria, 2007-03-02)
Potato average production in Brazil is well above the world s one, but in Rio Grande do Sul the opposite is true, as this state holds one of the country s smallest mean production. This fact is mainly due to the use of low ...
Manejo do nitrogênio na cultura do melão
(Universidade Federal de Santa Maria, 2007-01-11)
The goal of this work was to determine the N requirements of the muskmelon crop and adjusting a method for diagnosis of the plant nutritional status, for estimations of fertilization rates to be used during growth and ...